Need help from excel masters,
I have a userform enclude 3 comboboxes, and I have 3 columns (A) for Branches (B) for Departments and (C) for Names A2:c5000 the 3 lists are related and has duplicate and some blanks, what I want to do that when I choose a branch name in first combobox I want to get all departments that has relation with this branch without duplicate and blanks, same after I choose one from departments I want to get all employees names that has relation with that branch and this Dept. in the last combobox, without Dups. and blanks, and kindly avoid array formulas it's take too much time because the size of data.
For example:
[TABLE="width: 380"]
<tbody>[TR]
[TD]Branch[/TD]
[TD]Dept.[/TD]
[TD]Name[/TD]
[/TR]
[TR]
[TD]Lima[/TD]
[TD]Furniture & Interiors[/TD]
[TD]Jackson[/TD]
[/TR]
[TR]
[TD]Lima[/TD]
[TD]Food & Beverages[/TD]
[TD]Emma[/TD]
[/TR]
[TR]
[TD]Jakarta[/TD]
[TD]Real Estate Development[/TD]
[TD]Olivia[/TD]
[/TR]
[TR]
[TD]Dhaka[/TD]
[TD]Real Estate Development[/TD]
[TD]Lucas[/TD]
[/TR]
[TR]
[TD]Lagos[/TD]
[TD]Real Estate Development[/TD]
[TD][/TD]
[/TR]
[TR]
[TD]Lagos[/TD]
[TD]Fashion wear[/TD]
[TD]Mia[/TD]
[/TR]
[TR]
[TD]Dhaka[/TD]
[TD]Fashion wear[/TD]
[TD]Caden[/TD]
[/TR]
[TR]
[TD]Karachi[/TD]
[TD]Motor Vehicles[/TD]
[TD]Jacob[/TD]
[/TR]
[TR]
[TD]Lagos[/TD]
[TD]Shopping Malls[/TD]
[TD]Logan[/TD]
[/TR]
[TR]
[TD]Lagos[/TD]
[TD]Shopping Malls[/TD]
[TD]Jayden[/TD]
[/TR]
[TR]
[TD]Lima[/TD]
[TD]Furniture & Interiors[/TD]
[TD]Madison[/TD]
[/TR]
[TR]
[TD]Dhaka[/TD]
[TD]Ceramics & Sanitary ware[/TD]
[TD]Ethan[/TD]
[/TR]
[TR]
[TD]Jakarta[/TD]
[TD]Restaurants & Cafés[/TD]
[TD]Emily[/TD]
[/TR]
[TR]
[TD]Jakarta[/TD]
[TD]Real Estate Development[/TD]
[TD][/TD]
[/TR]
</tbody>[/TABLE]
thank you for always support, and excuse me for lingual mistake
I have a userform enclude 3 comboboxes, and I have 3 columns (A) for Branches (B) for Departments and (C) for Names A2:c5000 the 3 lists are related and has duplicate and some blanks, what I want to do that when I choose a branch name in first combobox I want to get all departments that has relation with this branch without duplicate and blanks, same after I choose one from departments I want to get all employees names that has relation with that branch and this Dept. in the last combobox, without Dups. and blanks, and kindly avoid array formulas it's take too much time because the size of data.
For example:
[TABLE="width: 380"]
<tbody>[TR]
[TD]Branch[/TD]
[TD]Dept.[/TD]
[TD]Name[/TD]
[/TR]
[TR]
[TD]Lima[/TD]
[TD]Furniture & Interiors[/TD]
[TD]Jackson[/TD]
[/TR]
[TR]
[TD]Lima[/TD]
[TD]Food & Beverages[/TD]
[TD]Emma[/TD]
[/TR]
[TR]
[TD]Jakarta[/TD]
[TD]Real Estate Development[/TD]
[TD]Olivia[/TD]
[/TR]
[TR]
[TD]Dhaka[/TD]
[TD]Real Estate Development[/TD]
[TD]Lucas[/TD]
[/TR]
[TR]
[TD]Lagos[/TD]
[TD]Real Estate Development[/TD]
[TD][/TD]
[/TR]
[TR]
[TD]Lagos[/TD]
[TD]Fashion wear[/TD]
[TD]Mia[/TD]
[/TR]
[TR]
[TD]Dhaka[/TD]
[TD]Fashion wear[/TD]
[TD]Caden[/TD]
[/TR]
[TR]
[TD]Karachi[/TD]
[TD]Motor Vehicles[/TD]
[TD]Jacob[/TD]
[/TR]
[TR]
[TD]Lagos[/TD]
[TD]Shopping Malls[/TD]
[TD]Logan[/TD]
[/TR]
[TR]
[TD]Lagos[/TD]
[TD]Shopping Malls[/TD]
[TD]Jayden[/TD]
[/TR]
[TR]
[TD]Lima[/TD]
[TD]Furniture & Interiors[/TD]
[TD]Madison[/TD]
[/TR]
[TR]
[TD]Dhaka[/TD]
[TD]Ceramics & Sanitary ware[/TD]
[TD]Ethan[/TD]
[/TR]
[TR]
[TD]Jakarta[/TD]
[TD]Restaurants & Cafés[/TD]
[TD]Emily[/TD]
[/TR]
[TR]
[TD]Jakarta[/TD]
[TD]Real Estate Development[/TD]
[TD][/TD]
[/TR]
</tbody>[/TABLE]
thank you for always support, and excuse me for lingual mistake